4251249 has 18 divisors (see below), whose sum is σ = 6316518. Its totient is φ = 2755200.

The previous prime is 4251239. The next prime is 4251253. The reversal of 4251249 is 9421524.

It can be written as a sum of positive squares in 3 ways, for example, as 28224 + 4223025 = 168^2 + 2055^2 .

It is not a de Polignac number, because 4251249 - 2⁸ = 4250993 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4251239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14989 + ... + 15269.

Almost surely, 2^4251249 is an apocalyptic number.

It is an amenable number.

4251249 is a deficient number, since it is larger than the sum of its proper divisors (2065269).

4251249 is a wasteful number, since it uses less digits than its factorization.

4251249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 325 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 4251249 is about 2061.8557175515. The cubic root of 4251249 is about 161.9964562554.

The spelling of 4251249 in words is "four million, two hundred fifty-one thousand, two hundred forty-nine".